as long as you don't care about attributes and new accounts (on either side) being created or modified, it doesn't really matter.
You will need to do it prior to the Exchange 2003 migration, assuming you aren't intending on migrating via PST. Regards, Michael B. Smith Consultant and Exchange MVP http://TheEssentialExchange.com -----Original Message----- From: Chuck [mailto:[email protected]] Sent: Monday, August 16, 2010 1:14 PM To: MS-Exchange Admin Issues Subject: Exchange 5.5 and AD Question I am working for a new client that has a very old set up still using Exchange 5.5 and an NT 4.0 domain. I plan on upgrading the domain this weekend and then in the next month or so moving to Exchange 2003 (for now!) since that seems to be the easiest migration path at this point (apart from creating a new Exchange group and starting from scratch. My question is during the period between upgrading the domain and upgrading Exchange, it is absolutely necessary to install the Active Directory Connector or will I be OK without it for a few weeks until I start the Exchange upgrade process? I realize there are benefits in running it, but is it necessary? I need a little sanity check before I upgrade the domain. Chuck
